Exhaust fan muffler



FIG. 1 is a top perspective view of an exhaust fan muffler;

FIG. 2 is a top view of an exhaust fan muffler of FIG. 1;

FIG. 3 is a side view of an exhaust fan muffler FIG. 1;

FIG. 4 is a side view of an exhaust fan muffler FIG. 1;

FIG. 5 is a side view of an exhaust fan muffler FIG. 1;

FIG. 6 is a side view of an exhaust fan muffler FIG. 1; and,

FIG. 7 is a rear view of an exhaust fan muffler FIG. 1.

The features shown in broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM We claim the ornamental design for an exhaust fan muffler, as shown and described. 